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Help CenterSpring Clip for Railway Sleepers for Metro and Tramway Rail Fixation With Anti-vibration Design
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As a leading manufacturer since 1998, Anping County Boli Hardware Wiremesh Products Factory specializes in producing high-quality spring clips for railway sleepers designed specifically for metro and tramway rail fixation with an advanced anti-vibration design. Our products are engineered to provide reliable elastic clamping force, reducing noise and vibration while ensuring long-term track stability. With over two decades of manufacturing experience and annual export value reaching US$5-10 million, we deliver spring clips that meet the rigorous demands of urban rail systems worldwide.
Our spring clips are manufactured from premium spring steel (e.g., 60Si2Mn) through precise heat treatment and forming processes, guaranteeing consistent performance and durability. The anti-vibration design incorporates optimized geometry that absorbs dynamic loads and mitigates track chatter, which is critical for metro and tramway applications where passenger comfort and structural longevity are paramount. Key features include high fatigue resistance, easy installation, and compatibility with various sleeper types (concrete, wood, or composite).
Product Features & Technical Specifications
- High Elasticity: Maintains consistent clamping force over millions of load cycles, reducing maintenance frequency.
- Anti-Vibration Performance: Built-in damping characteristics reduce rail vibration by up to 30% compared to standard clips, lowering noise pollution.
- Corrosion Resistance: Optional surface treatments such as zinc plating, black oxide, or Dacromet coating for extended service life in harsh environments.
- Easy Installation: Simple clip-and-lock mechanism allows quick assembly without specialized tools, saving labor costs.
- Wide Compatibility: Fits standard rail profiles (e.g., 50kg/m, 60kg/m) and sleeper gauges used in metro and tramway systems.
- Customizable Dimensions: Available in various lengths, diameters, and spring rates to suit specific project requirements.
| Parameter | Value |
|---|---|
| Material | Spring Steel (60Si2Mn / 55Cr3) |
| Hardness (HRC) | 38–45 |
| Tensile Strength (MPa) | ≥ 1570 |
| Clamping Force (kN) | 8–12 (adjustable) |
| Fatigue Life (cycles) | ≥ 3 million |
| Operating Temperature | -40°C to +80°C |
| Surface Treatment | Black oxide, zinc, Dacromet (optional) |
The anti-vibration design of our spring clip is achieved through a carefully calculated three-dimensional shape that distributes stress evenly and provides a damping effect against vertical and lateral forces. This is particularly beneficial for metro and tramway lines where trains operate at moderate speeds with frequent stops, generating repetitive impact loads. By using our clips, rail operators can experience lower track maintenance costs, extended sleeper lifespan, and improved passenger comfort due to reduced vibration transmission into the vehicle body.
Our manufacturing process includes strict quality control at every stage: raw material inspection, heat treatment monitoring, dimensional testing, and fatigue testing. Each batch is sampled to ensure conformity with internal standards and customer specifications. We can also provide customized clips for non-standard rail profiles or special sleeper designs upon request.
Trust & Reliability
With a factory established in 1998 and annual export revenues of US$5-10 million, Anping County Boli Hardware Wiremesh Products Factory has supplied railway components to clients across North America, South America, Europe, Southeast Asia, Africa, Oceania, and the Middle East. Our shipping ports include Tianjin, Qingdao, Shanghai, and Foshan, ensuring efficient logistics for global delivery. We are dedicated to providing high-quality anti-vibration spring clips that meet the evolving needs of urban rail systems. Contact us today for a quote or to discuss your specific requirements – we are ready to support your next metro or tramway project.
Frequently Asked Questions (FAQ)
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Q: What materials are used for your spring clips?
A: We primarily use high-quality spring steel (e.g., 60Si2Mn or 55Cr3) which offers excellent elasticity and fatigue resistance. Other materials are available upon request. -
Q: Can the clips be customized for different rail sizes?
A: Yes, we offer customization in terms of dimensions, clamping force, and surface treatment to match your specific rail profile and sleeper type. -
Q: How does the anti-vibration design work?
A: The clip’s geometry is engineered to absorb and dissipate vibrational energy through elastic deformation, reducing the transfer of vibrations to the sleeper and track structure. -
Q: What is the typical lifespan of these clips?
A: Under normal operating conditions, our clips can last over 3 million fatigue cycles, which corresponds to several years of service depending on traffic density. -
Q: Do you provide samples for testing?
A: Yes, we can provide samples for evaluation. Please contact us with your requirements. -
Q: What surface treatments are available?
A: Standard options include black oxide and zinc plating. For enhanced corrosion resistance, we can apply Dacromet or other coatings as per your specification. -
Q: Are these clips suitable for both concrete and wood sleepers?
A: Yes, our clips are designed to be compatible with various sleeper materials, including concrete, wood, and composite. We can also supply matching base plates if needed. -
Q: What is the minimum order quantity (MOQ)?
A: MOQ depends on the specific model and customization. For standard items, it is typically 500 pieces. Please inquire for detailed pricing.
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